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man pages section 3: Extended Library Functions, Volume 1

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Updated: Wednesday, July 27, 2022
 
 

DH_size (3openssl)

Name

DH_size - Hellman prime size

Synopsis

#include <openssl/dh.h>

int DH_size(DH *dh);

Description

DH_size(3openssl)                   OpenSSL                  DH_size(3openssl)



NAME
       DH_size - get Diffie-Hellman prime size

SYNOPSIS
        #include <openssl/dh.h>

        int DH_size(DH *dh);

DESCRIPTION
       This function returns the Diffie-Hellman size in bytes. It can be used
       to determine how much memory must be allocated for the shared secret
       computed by DH_compute_key().

       dh->p must not be NULL.

RETURN VALUE
       The size in bytes.


ATTRIBUTES
       See attributes(7) for descriptions of the following attributes:


       +---------------+--------------------------+
       |ATTRIBUTE TYPE |     ATTRIBUTE VALUE      |
       +---------------+--------------------------+
       |Availability   | library/security/openssl |
       +---------------+--------------------------+
       |Stability      | Pass-through uncommitted |
       +---------------+--------------------------+

SEE ALSO
       dh(3), DH_generate_key(3)

HISTORY
       DH_size() is available in all versions of SSLeay and OpenSSL.



NOTES
       Source code for open source software components in Oracle Solaris can
       be found at https://www.oracle.com/downloads/opensource/solaris-source-
       code-downloads.html.

       This software was built from source available at
       https://github.com/oracle/solaris-userland.  The original community
       source was downloaded from
       https://www.openssl.org/source/openssl-1.0.2ze.tar.gz.

       Further information about this software can be found on the open source
       community website at https://www.openssl.org/.



1.0.2ze                           2022-05-03                 DH_size(3openssl)